Hmm.....
Looks at the living room..
If you build a bowling alley with a manual pin setter, it's just a rack to hold pins.
The most expensive part would be to make the lane but could be altered for cheaper wood.
Trying to figure out how much this would really cost.
Don't forget the White Russian bar.
Seriously, to get a several lanes of used equipment but with everything would run around $10K. I am looking up some information on parts. I can build the track for the ball return, the alley and the pin setter device.
Cause of the work I do for FEC, I get asked if I want pins or bowling balls all the time. I tried to juggle a few and messed up my wrist when one pin bounced off it. So to get pins and house used balls would be free. Probably can get old benches also. xD